Hydraulic press.



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N. E. PARISH.

HYDRAULIC PRESS.

APPLIUATION FILED JAN. 19, 1911.

Patented sept. 5,1911.-

UNITED STATES' PATENT OFFICE.

NEFF E. PARISI-I, OF READING, PENNSYLVANIA, ASSIGNOR TO PARISH MANUFACTUR- ING COMPANY, OF READING, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

HYDRAULIC PRESS.

recava?.

To @ZZ whom it may concern:

Be it known that I, NEFF E. PARISH, citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Hydraulic Presses, of which the following is a specication.

This invention relates to improvements in hydraulic presses and the object is to provide a press for forming channel irons.

The invention consists of an arrangement of press units of any desirable number, which units are identical in construction and which work in unison.

The invention comprises a press in which two vertically moving rams are employed, one of which moves up and the other down and between which the channel is formed by first gripping the plate along its longitudi# nal center and while so held, forming the channel by pressing up the longitudinal edges thereof. Vith this construction of press the channel bed is first pressed perfectly fiat, removing any irregularities in this portion of the plate and allowing it to retain its proper shape during the pressing up of the sides.

The invention is more fully described in the following specification and clearly illustrated in the accompanying drawing, in which:

Figure 1 is a side elevation, showing two of the press units. Fig. 2 is a vertical sectional view of one of the press units showing a plate in position ready to be operated upon. Fig. 3 is a plan view of one of the press units. Fig. 4c is an enlarged section on line X-X of Fig. 2.

The numeral 1 designates the base and 2 the main frame member of the press. The upper section of the frame 3, is oined to the main portion by means of side uprights 4L.

In each of the frame sections is formed a cylinder 5 having suitable hydraulic connections 6, and each of the cylinders is provided with a ram 7 adapted to move therein by the hydraulic action, in the usual manner of hydraulic presses. The upper rams 7 carry a beam 8 to the under face of which is secured the male die member 9. This beam, as shown in Fig. 1, is backed by the rams7 in the entire series of press units, and it moves in guides 10 secured to the upper frame sec- Specification of Letters Patent.

Application filed January 19, 1911.

Patented Sept. 5, 1911. serial no. 603,418.

tions. The lower rams 7 carry a movable platen 11 which travels between and is guided by the uprights 4. This platen 11 is formed with a central opening through which a clamping block support 12 passes. This support rests on the frame section 2 and is rigid. On the top of this support isplaced the clamping block 13, between which and the male die 9 the plate 15 is held while the channel is formed therefrom.

The numeral 14E designates the female die members, which are located in a central depression in the platen 11 and are held in position by means of liners 16.

When the channel is to be formed, the plate 15 is placed across the female dies as shown in Fig. 2. The upper ram is started and the beam is lowered until the male die 9 rests upon and firmly holds the plate against the clamping block 13. This action will remove all unevenness from the central -portion of the plate and hold it perfectly flat during the following step of the o aeration.

IVhen the plate is so secured, the lower ram is started. As this moves up, carrying with it the platen and the dies 14, the side walls of the channel are formed by pressing up the longitudinal edges of the plate. The central portion of the plate is firmly held during this latter step, between the male die and the clamping block on the rigid support 12.

yIt is evident that with this press, the channel when formed will have a perfectly even base as there is no possibility of its bending during the upward movement of the dies.

It is evident also that the dies may be changed to suit various shapes of channels to be formed, and that any number of press units may be employed, depending on the length of the channel to be bent.

Having thus fully described my invention7 what I claim and desire to secure by Let-- ters Patent is In a hydraulic press, a plurality of press units each comprising a frame, an upper and lower cylinder, vertically movable rams for said cylinders: adapted to move toward each other, a beam carried by the upper rams, a male die member on the under faceof the beam, guides for the beam, a platen carried by the lower rams, guides for the platen, removable female die members located in the upper face of the platen, retaining liners for the die members in the platen, a clampthe lower rams and female die members 10 ing'block, a rigid support for the clamping while the sheet is so held. bloolnsaid block being in Vertical alinement In testimony whereof I aHiX my signature,

' with the male die member and adapted to in presence of two witnesses.

5 grasp between its upper face and the male die member a sheet of metal', means for lower- NEFF E' PARISH' ing the upper 'rams until the sheet of metal Witnesses:

is Vsecured between the male die member and E. B. WELDER,

the clamping block7 and means for raising ED. A. KELLY.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C. 

